Conspiracy theories are a dime a dozen — especially if you spend much time on the internet. And they are not unique to Americans. Researchers now have some clues about why conspiracy theories are so popular, and persistent.

The general cemetery in Santiago, Chile, is a place where families come together. In life, and in death, sports teams, families and all manner of people choose to live the after-life together. The living regularly tend their graves and visit their departed family members.

Violence in Mexico is not just taking a toll along the border. It's impacting tourism to the country's interior.The World's Jason Margolis has more from San Miguel de Allende, a popular tourist destination in central Mexico.

Conspiracy theories are a dime a dozen — especially if you spend much time on the internet. And they are not unique to Americans. Researchers now have some clues about why conspiracy theories are so popular, and persistent.

Violence in Mexico is not just taking a toll along the border. It's impacting tourism to the country's interior.The World's Jason Margolis has more from San Miguel de Allende, a popular tourist destination in central Mexico.

The general cemetery in Santiago, Chile, is a place where families come together. In life, and in death, sports teams, families and all manner of people choose to live the after-life together. The living regularly tend their graves and visit their departed family members.